ASTM D6072-08

Standard Practice for Obtaining Samples of Geosynthetic Clay Liners

SIGNIFICANCE AND USE
This practice provides a procedure by which samples of GCL should be obtained for laboratory testing. The practice applies to materials obtained prior to installation (either at a job site or at a production facility) or exhumed material after installation.
Only GCL samples obtained in accordance with 5.1 of this practice will be considered representative of the actual manufactured GCL for quality assurance/quality control (QA/QC) purposes..
The quantity of GCL received by the laboratory should be sufficient for the preparation of several representative test specimens for the standardized physical, hydraulic, and mechanical tests to be performed on the GCLs.
The procedures in this practice should be used by plant and field personnel for obtaining GCL samples for laboratory testing.
SCOPE
1.1 This practice covers procedures for sampling geosynthetic clay liners (GCLs) for the purpose of laboratory testing. These procedures are designed to ensure that representative samples are obtained and properly packaged for submittal to a testing laboratory.
1.2 The procedures in this practice may be applied to either samples of unhydrated GCLs obtained at the project site prior to installation (or at the production facility, prior to shipment to the project site) or samples exhumed from a project site after installation.
1.3 It is assumed that the number  of samples to be obtained has already been determined in the project specification, standard test method, or by prior agreement between the purchaser and seller. This practice covers only the methods for obtaining a pre-arranged number of samples and does not describe methods for obtaining individual specimens from the sample.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Jun-2008
• ICS: 13.080.99 - Other standards related to soil quality
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.04 - Geosynthetic Clay Liners

Relations

• Replaces: ASTM D6072-96(2002) - Standard Guide for Obtaining Samples of Geosynthetic Clay Liners
• Effective Date: 01-Jul-2008
• Replaced By: ASTM D6072/D6072M-09 - Standard Practice for Obtaining Samples of Geosynthetic Clay Liners
• Effective Date: 01-Nov-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
Designation:D6072–08
Standard Practice for
1
Obtaining Samples of Geosynthetic Clay Liners
This standard is issued under the fixed designation D6072; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D5888 Guide for Storage and Handling of Geosynthetic
Clay Liners
1.1 This practice covers procedures for sampling geosyn-
thetic clay liners (GCLs) for the purpose of laboratory testing.
3. Terminology
These procedures are designed to ensure that representative
3.1 Definitions:
samples are obtained and properly packaged for submittal to a
3.1.1 geosynthetic clay liner (GCL), n—a manufactured
testing laboratory.
hydraulic barrier consisting of clay bonded to a layer or layers
1.2 The procedures in this practice may be applied to either
of geosynthetics.
samples of unhydrated GCLs obtained at the project site prior
3.1.2 sample, n—a portion of a material which is taken for
toinstallation(orattheproductionfacility,priortoshipmentto
testing or for record purposes (See Practice D4354).
the project site) or samples exhumed from a project site after
3.1.3 specimen, n—a specific portion of a material or
installation.
laboratory sample upon which a test is performed or which is
1.3 It is assumed that the number of samples to be obtained
taken for that purpose (See Practice D4354).
has already been determined in the project specification,
3.1.4 For definitions of other geosynthetic terms used in this
standard test method, or by prior agreement between the
practice, refer to Terminology D4439.
purchaser and seller. This practice covers only the methods for
obtaining a pre-arranged number of samples and does not
4. Significance and Use
describe methods for obtaining individual specimens from the
4.1 This practice provides a procedure by which samples of
sample.
GCL should be obtained for laboratory testing. The practice
1.4 The values stated in SI units are to be regarded as the
appliestomaterialsobtainedpriortoinstallation(eitheratajob
standard.
site or at a production facility) or exhumed material after
1.5 This standard does not purport to address all of the
installation.
safety concerns, if any, associated with its use. It is the
4.2 Only GCL samples obtained in accordance with 5.1 of
responsibility of the user of this standard to establish appro-
this practice will be considered representative of the actual
priate safety and health practices and determine the applica-
manufactured GCL for quality assurance/quality control (QA/
bility of regulatory limitations prior to use.
QC) purposes.
4.3 The quantity of GCL received by the laboratory should
2. Referenced Documents
2 be sufficient for the preparation of several representative test
2.1 ASTM Standards:
specimens for the standardized physical, hydraulic, and me-
D4220 Practices for Preserving and Transporting Soil
chanical tests to be performed on the GCLs.
Samples
4.4 The procedures in this practice should be used by plant
D4354 Practice for Sampling of Geosynthetics for Testing
and field personnel for obtaining GCL samples for laboratory
D4439 Terminology for Geosynthetics
testing.
1
5. Procedure
This practice is under the jurisdiction of ASTM CommitteeD35 on Geosyn-
thetics and is the direct responsibility of Subcommittee D35.04 on Geosynthetic
5.1 Obtaining Samples prior to Installation:
Clay Liners.
5.1.1 In accordance with the project specifications or with
Current edition approved July 1, 2008. Published September 2008. Originally
approved in 1996. Last previous edition approved in 2002 as D6072–96(2002). Practice D4354, divide the shipment or other given quantity of
DOI: 10.1520/D6072-08.
GCL into lots, and select lot and laboratory samples. This will
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
usually involve the selection of a certain number of finished
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
GCL rolls from which samples will be cut.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D6072–08
5.1.2 Affix on the packaging of the GCLrolls to be sampled 5.1.13 Samples should be transmitted to the laboratory in a
adhesive labels or other markings which clearly identify that manner that minimizes the amount elapsed time, sample
the roll is to be sampled. handling, disturbances (such as moisture, vibration, impact,
etc.) that could occur in transit. Expedited delivery will
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D6072–96 (Reapproved 2002)
Standard Guide for Designation: D 6072 – 08
Standard Practice for
1
Obtaining Samples of Geosynthetic Clay Liners
This standard is issued under the fixed designation D 6072; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers procedures for sampling geosynthetic clay liners (GCLs) for the purpose of laboratory testing. These
procedures are designed to ensure that representative samples are obtained and properly packaged for submittal to a testing
laboratory.
1.2TheproceduresinthispracticemaybeappliedtosamplesofunhydratedGCLsobtainedattheprojectsiteorattheproduction
facility, prior to shipment to the project site.
1.2 The procedures in this practice may be applied to either samples of unhydrated GCLs obtained at the project site prior to
installation (or at the production facility, prior to shipment to the project site) or samples exhumed from a project site after
installation.
1.3 It is assumed that the number of samples to be obtained has already been determined in the project specification, standard
test method, or by prior agreement between the purchaser and seller. This practice covers only the methods for obtaining a
pre-arranged number of samples and does not describe methods for obtaining individual specimens from the sample.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards: ASTM Standards:
D 4220 Practices for Preserving and Transporting Soil Samples
D 4354 Practice for Sampling of Geosynthetics for Testing
2
D 4439Terminology for Geosynthetics
2
D4873Guide forIdentification, Storage, and Handling of Geosynthetic Rolls and Samples Terminology for Geosynthetics
D 5888 Guide for Storage and Handling of Geosynthetic Clay Liners
3. Terminology
3.1 Definitions:
3.1.1 geosynthetic clay liner (GCL), n— a manufactured hydraulic barrier consisting of clay bonded to a layer or layers of
geosynthetics.
3.1.2 sample, n—a portion of a material which is taken for testing or for record purposes (See Practice D 4354).
3.1.3 specimen, n—a specific portion of a material or laboratory sample upon which a test is performed or which is taken for
that purpose (See Practice D 4354).
3.1.4 For definitions of other geosynthetic terms used in this practice, refer to Terminology D 4439.
4. Significance and Use
4.1 This practice provides a methodprocedure by which samples of GCL mayshould be obtained for laboratory testing. The
1
This practice is under the jurisdiction ofASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.04 on Geosynthetic Clay Liners.
Current edition approved December 10, 1996. Published December 1997.
Current edition approved July 1, 2008. Published September 2008. Originally approved in 1996. Last previous edition approved in 2002 as D 6072–96(2002).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
, Vol 04.13.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6072–08
practice applies to materials obtained prior to installation (either at a job site or at a production facility) or exhumed material after
installation.
4.2 Only GCL samples obtained in accordance with 5.1 of this practice will be considered representative of the actual
manufactured GCL for quality assurance/quality control (QA/QC) purposes.
4.3 The quantity of GCL received by the laboratory should be sufficient for the preparation of several representative test
specimens for a variety of the standardized physical, hydraulic, and mechanical tests commonly to be performed on the GCLs.
4.4 TheproceduresinthispracticeshouldbeusedbyplantandfieldpersonnelforobtainingGCLsamplesforlaboratorytesting.
5. Procedu
...